Would vacuum sweeper filter/bag work???

My wife uses a CPAC. This is a night time breathing aid for people with apnea.
It uses two filters, one is a washable foam rubber, the other is replacable
"paper" filter. This replacable filter is about as big as a compact disk and
costs close to $7 for ONE filter.
My question is...........Could I buy a package of HEPA filtration vacuum
sweeper bags and cut filters from them to fit the CPAC. From what I've heard,
these HEPA filters allow nothing buy filtered air to come out of the sweeper.
Seems to me my idea would work. Any opinions?

Oh for goodness sake, spend the money for the proper filters for your
wife to be able to breathe!
Can't you submit the cost to an insurance company for reimbursement
since it's medically necessary?
Nan

apnea.
replacable
and
heard,
sweeper.
You would need to consult a doctor, but I personally would consider this
dangerous. You would be using the filter for a purpose for which it was not
intended, and your wife has a condition (apnea) that has caused some
fatalities. Don't take chances!
MaryL

Tom, this is not really an answerable question. It might work, might
not. Probably not. No way to know if it is working properly without a
manometer to check the pressure and without checking the internal fan
for dust and dirt.
You risk changing the pressure of the airflow produced by the CPAP
blower, which would mean that your wife's apnea would not be correctly
treated. Also, you risk damaging the blower if the homemade filter
allowed dirt and dust into the mechanism unbeknownst to you. My CPAP
cost around $1200, so the proper, factory-made filter seems to me like
a small investment.
My CPAP has two filters, one in front of the other. By vacuuming off
the collected dust from the outer filter while it is still in place, I
can extend the life of both the outer and inner filters somewhat. But
when the inner filter starts to look gray and dirty, it's time to toss
them both. This was suggested to me by the respiratory technician who
delivered the CPAP. I would not do this if the machine has only a
single filter.
Just FYI, it's "CPAP" by the way, not "CPAC." It is an acronym for
"Continuous Postive Airway Pressure."

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